[Freedombox-discuss] apt-get update and an SD card

Nicholas Hardiman nick.hardiman at gmail.com
Thu May 17 18:52:32 UTC 2012

When I run apt-get upgrade, the top command tells me wa (time spent waiting for SD card IO) can sit at 95%. SD cards seem to have appalling write speeds. 

That's just too bad, according to

Are you using any trick to make big write jobs less awful? 

no swap, more tmpfs, perhaps a different file system altogether? 

(good notes on flash file systems at  http://superuser.com/questions/248078/choice-of-filesystem-for-gnu-linux-on-an-sd-card)

And what about apps? Do you use the memory engine with mysql? Something clever with /var? 

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